One new species of the genus Sternostoma (Mesostigmata: Rhinonyssidae) from Cuculus canorus (Cuculiformes: Cuculidae) from Leningrad Province, Russia

Birds are host to a wide assemblage of parasitic arthropods, including mites (Acari), lice (Phiraptera) and fleas (Siphonaptera). A new species of nasal mite, Sternostoma zini n. sp. (Mesostigmata: Rhinonyssidae), collected from the Common Cuckoo, Cuculus canorus (Linnaeus, 1758) (Cuculiformes: Cuculidae) from Leningrad province, Russia, is described and illustrated. Sternostoma zini n. sp. is most similar to Sternostoma cuculorum Fain, 1956, which was also described from Cuculus canorus. These two species are distinguishable by several characteristics, such as the shape of the opisthosomal and genital shields, as well as opisthosomal and hypostomal chaetotaxy